Hi I troubleshooting a huge application where i experience the problem that even if tracepoint_enabled is used i get the huge overhead of formatting the output even if then the message is not sent to the lttng buffers.
The tracepoint loglevel is set to TRACE_INFO using the TRACEPOINT_LOGLEVEL macro. I managed to rebuild the application setting the level to TRACE_DEBUG instead and then i could print continuously that the tracepoint_enabled returned false. If i flip it back to TRACE_INFO tracepoint_enabled always returns true, hence do lots of string building but then no trace is actually sent off to lttng (which is correct since i haven't enabled the tracepoint). Even if i explicitly do disable event on the provider and tracepoint the TRACE_INFO tracepoints returns true in tracepoint_enabled Is this by design that tracepoint_enabled always returns true for TRACE_INFO and lower values or is this configurable in any way? I am using this inside a docker image running Wind River Linux bash-4.3# lttng --version lttng (LTTng Trace Control) 2.10.6 - KeKriek - v2.10.6-11-g8fcbf96 bash-4.3# Any advice are welcome! //Anders
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